55891315 has 8 divisors (see below), whose sum is σ = 67919040. Its totient is φ = 44146752.

The previous prime is 55891289. The next prime is 55891321. The reversal of 55891315 is 51319855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55891315 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70354 + ... + 71143.

It is an arithmetic number, because the mean of its divisors is an integer number (8489880).

Almost surely, 2^55891315 is an apocalyptic number.

55891315 is a deficient number, since it is larger than the sum of its proper divisors (12027725).

55891315 is a wasteful number, since it uses less digits than its factorization.

55891315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141581.

The product of its digits is 27000, while the sum is 37.

The square root of 55891315 is about 7476.0494246627. The cubic root of 55891315 is about 382.3385680152.

The spelling of 55891315 in words is "fifty-five million, eight hundred ninety-one thousand, three hundred fifteen".